APS 44M04 User manual

Operation Manual
44M04 – Rev 1.1 P/N 160904
44M04
Modular Load Mainframe
ADAPTIVE Power Systems
Worldwide Supplier of Power Equipment
TM
Copyright  2014, Adaptive Power Systems, Inc. (APS) • All Rights Reserved • No reproduction without written authorization from APS.
Tel: [phone]
Fax: [phone]
www.caltest.de
Kohlmattstrasse 7
D-77876 KAPPELRODECK
[email protected]
Caltest Instruments GmbH

CONTENTS
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Contents
Contact Information....................................................................................................................................4
Limited Warranty........................................................................................................................................5
Service and Spare Parts Limited Warranty............................................................................................5
1Introduction...........................................................................................................................................6
1.1 Overview.................................................................................................................................................. 6
1.2 Safety Notices .......................................................................................................................................... 8
1.3 Introduction to the 44M04 Modular Load Mainframe ........................................................................ 10
1.3.1 Mainframe Features ....................................................................................................................... 11
1.3.2 Standard Accessories ..................................................................................................................... 11
1.3.3 Remote Control Options ................................................................................................................ 11
1.3.4 Specifications ................................................................................................................................. 12
2Installation.......................................................................................................................................... 13
2.1 Inspection ............................................................................................................................................... 13
2.2 AC Line Input Voltage Check .............................................................................................................. 14
2.3 Input Fuse .............................................................................................................................................. 15
2.3.1Fuse Replacement Procedure ........................................................................................................ 15
2.4 Grounding Requirements ...................................................................................................................... 16
2.5 Chassis Position ..................................................................................................................................... 16
2.6 Rack Mounting ...................................................................................................................................... 16
2.7 Cleaning ................................................................................................................................................. 16
2.8 Powering Up .......................................................................................................................................... 17
2.9 Interface Options ................................................................................................................................... 18
2.9.1 RS232 Serial Interface ................................................................................................................... 18
2.9.2 GPIB Interface ............................................................................................................................... 18
2.9.3 USB Interface ................................................................................................................................. 19
2.9.4 LAN Interface ................................................................................................................................ 19
2.10 Remote Controller Option..................................................................................................................... 20
2.11 Analog Programming Inputs ................................................................................................................ 21
3Mainframe Operation....................................................................................................................... 22
3.1 Overview................................................................................................................................................ 22
3.2 Front Panel ............................................................................................................................................. 22
3.3 Side Panels ............................................................................................................................................. 23
3.4 Rear Panel .............................................................................................................................................. 23
3.5 Mainframe Controls and Indicators ...................................................................................................... 24
3.5.1 Power On Switch ........................................................................................................................... 24
3.5.2 LCD Display .................................................................................................................................. 24
3.5.3 Keypad Description ....................................................................................................................... 26
3.6 Operating Instructions ........................................................................................................................... 28
3.6.1 Setting System Parameters ............................................................................................................ 28
3.6.2 Settings STORE/RECALL Operation .......................................................................................... 30
3.6.3 WAKE UP Function ...................................................................................................................... 31
3.6.4 AUTO-SEQUENCING ................................................................................................................ 32
3.6.5 AUTO-SEQUENCE – EDIT MODE .......................................................................................... 32
3.6.6 AUTO-SEQUENCE – TEST MODE .......................................................................................... 35

CONTENTS
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4Remote Control Programming........................................................................................................ 38
4.1 Overview................................................................................................................................................ 38
4.2 RS232 Set-up ......................................................................................................................................... 39
4.3 Programming Syntax............................................................................................................................. 40
4.3.1 Parenthesis ...................................................................................................................................... 40
4.3.2 Terminators .................................................................................................................................... 40
4.4 Short Form Command Syntax .............................................................................................................. 42
4.4.1 Notations and Conventions Used in programming commands: .................................................. 47
4.5 Long Form Command Syntax .............................................................................................................. 48
4.5.1 Notations and Conventions Used in programming commands: .................................................. 54
4.6 Remote Control Command Descriptions ............................................................................................. 55
4.6.1 SETTING Commands ................................................................................................................... 56
4.6.2 LIMIT Commands ......................................................................................................................... 67
4.6.3 STATE Commands ....................................................................................................................... 69
4.6.4 SYSTEM Commands .................................................................................................................... 74
4.6.5 MEASUREMENT Commands .................................................................................................... 77
5System Calibration............................................................................................................................ 78
5.1 Overview................................................................................................................................................ 78
6Appendix A - USB Driver Installation........................................................................................... 79
6.1 Overview................................................................................................................................................ 79
6.2 USB Driver Installation ......................................................................................................................... 79
7Appendix B - LAN Driver Installation........................................................................................... 82
7.1 Overview................................................................................................................................................ 82
7.2 Introduction ............................................................................................................................................ 82
8Appendix C - Auto Sequence Programming Examples.............................................................. 85
8.1 Overview................................................................................................................................................ 85
8.2 Edit Mode .............................................................................................................................................. 85
8.3 Test Mode .............................................................................................................................................. 86
8.4 AUTO TEST SEQUENCY Example .................................................................................................. 87
9Appendix D - Short Circuit, OPP and OCP Test Examples...................................................... 89
9.1 Overview................................................................................................................................................ 89
9.2 SHORT Test .......................................................................................................................................... 89
9.3 OPP Test ................................................................................................................................................ 90
9.4 OCP Test ................................................................................................................................................ 91
10 CE MARK Declaration of Conformity.......................................................................................... 92
11 RoHS Material Content Declaration.............................................................................................. 93

CONTACT INFORMATION
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Contact Information
AMERICA / CANADA
Adaptive Power Systems
Irvine, USA
Phone: [phone]
Fax: [phone]
Email: [e-mail]
EUROPE
Caltest Instruments Ltd.
Guildford, United Kingdom
Phone: [phone]
Fax: [phone]
Email: [e-mail]
CHINA
PPST Shanghai Co. Ltd.
Shanghai, China
Phone: [phone]
Fax: [phone]
Email: [e-mail]
Web: http://www.adaptivepower.com

WARRANTY INFORMATION
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Limited Warranty
Adaptive Power Systems, Inc. (APS) warrants each unit to be free from defects in material
and workmanship. For the period of one (1) year from the date of shipment to the purchaser,
APS will either repair or replace, at its sole discretion, any unit returned to the APS factory in
Irvine, California or one of its designated service facilities. It does not cover damage arising
from misuse of the unit or attempted field modifications or repairs. This warranty specifically
excludes damage to other equipment connected to this unit.
Upon notice from the purchaser within (30) days of shipment of units found to be defective in
material or workmanship, APS will pay all shipping charges for the repair or replacement. If
notice is received more than thirty (30) days from shipment, all shipping charges shall be paid
by the purchaser. Units returned on debit memos will not be accepted and will be returned
without repair.
This warranty is exclusive of all other warranties, expressed or implied.
Service and Spare Parts Limited Warranty
APS warrants repair work to be free from defects in material and workmanship for the period
of ninety (90) days from the invoice date. This Service and Spare Parts Limited Warranty
applies to replacement parts or to subassemblies only. All shipping and packaging charges are
the sole responsibility of the buyer. APS will not accept debit memos for returned power
sources or for subassemblies. Debit memos will cause return of power sources or assemblies
without repair.
This warranty is exclusive of all other warranties, expressed or implied.

CHAPTER 1
INTRODUCTION
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1 Introduction
1.1 Overview
Chapter 1 contains important information you should read BEFORE attempting to install
and power-up APS Equipment. The information in this chapter is provided for use by
experienced operators. Experienced operators understand the necessity of becoming familiar
with, and then observing, life-critical safety and installation issues. Topics in this chapter
include:
• Safety Notices
• Warnings
• Cautions
• Preparation for Installation
• Installation Instructions
Make sure to familiarize yourself with the SAFETY
SYMBOLS shown on the next page. These symbols are used
throughout this manual and relate to important safety
information and issues affecting the end user or operator.

CHAPTER 1
INTRODUCTION
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SAFETY SYMBOLS
Direct
Alternating current (AC)
Both direct and
Three-phase alternating
Off (Supply)
On (Supply)
Protective earth
Caution: Refer to this manual before using the meter.
Caution, risk of electric
Fuse

CHAPTER 1
INTRODUCTION
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1.2 Safety Notices
SAFETY SUMMARY
The following general safety precautions must be observed during all phases of operation,
service, and repair of this instrument. Failure to comply with these precautions or with specific
warnings elsewhere in this manual violates safety standards of design, manufacture, and
intended use of the instrument. Adaptive Power Systems assumes no liability for the
customer's failure to comply with these requirements.
GENERAL
This product is a Safety Class 1 instrument (provided with a protective earth terminal). The
protective features of this product may be impaired if it is used in a manner not specified in the
operation instructions.
ENVIRONMENTAL CONDITIONS
This instrument is intended for indoor use in an installation category I, pollution degree 2
environment. It is designed to operate at a maximum relative humidity of 80% and at altitudes
of up to 2000 meters. Refer to the specifications tables for the ac mains voltage requirements
and ambient operating temperature range.
BEFORE APPLYING POWER
Verify that the product is set to match the available line voltage and the correct fuse is
installed.
GROUND THE INSTRUMENT
This product is a Safety Class 1 instrument (provided with a protective earth terminal). To
minimize shock hazard, the instrument chassis and cabinet must be connected to an electrical
ground. The instrument must be connected to the ac power supply mains through a properly
rated three-conductor power cable, with the third wire firmly connected to an electrical ground
(safety ground) at the power outlet. Any interruption of the protective (grounding) conductor
or disconnection of the protective earth terminal will cause a potential shock hazard that could
result in personal injury.

CHAPTER 1
INTRODUCTION
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FUSES
Only fuses with the required rated current, voltage, and specified type (normal blow, time
delay, etc.) should be used. Do not use repaired Fuses or short circuit the fuse holder. To do so
could cause a shock or fire hazard.
DO NOT OPERATE IN AN EXPLOSIVE ATMOSPHERE.
Do not operate the instrument in the presence of flammable gases or fumes.
KEEP AWAY FROM LIVE CIRCUITS.
Operating personnel must not remove instrument covers. Component replacement and
internal adjustments must be made by qualified service personnel. Do not replace components
with power cable connected. Under certain conditions, dangerous voltages may exist even
with the power cable removed. To avoid injuries, always disconnect power, discharge circuits
and remove external voltage sources before touching components.
DO NOT SERVICE OR ADJUST ALONE.
Do not attempt internal service or adjustment unless another person, capable of rendering first
aid and resuscitation, is present.
DO NOT EXCEED INPUT RATINGS.
This instrument may be equipped with a line filter to reduce electromagnetic interference and
must be connected to a properly grounded receptacle to minimize electric shock hazard.
Operation at line voltages or frequencies in excess of those stated on the data plate may cause
leakage currents in excess of 5.0 mA peak.
DO NOT SUBSTITUTE PARTS OR MODIFY INSTRUMENT.
Because of the danger of introducing additional hazards, do not install substitute parts or
perform any unauthorized modification to the instrument. Return the instrument to an
Adaptive Power Systems Sales and Service Office for service and repair to ensure that safety
features are maintained.
Instruments that appear damaged or defective should be made inoperative and secured against
unintended operation until they can be repaired by qualified service personnel.

CHAPTER 1
INTRODUCTION
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1.3 Introduction to the 44M04 Modular Load Mainframe
The 44M04 electronic load mainframe is required to provide the DC power conversion and
optional computer communications to the 4 Series load modules. The 44M04 is designed to
house up to four of the following models:
41L Series
Model
Description
Max Power
(W)
Max Voltage
(V)
Max Current
(A)
41L0630 Single Channel DC Load Module 150 60 30
41L0660 Single Channel DC Load Module 300 60 60
41L2512 Single Channel DC Load Module 300 250 12
41L5012 Single Channel DC Load Module 300 500 12
41L0615
Single Channel DC Load Module
75
60
15
42L Series
Model
Description
Max Power
(W)
Max Voltage
(V)
Max Current
(A)
42L0860 Dual Channel DC Load Module 250 / 50 80 / 80 60 / 6
42L0824 Dual Channel DC Load Module 120 / 120 80 / 80 24 / 24
42L0803
Dual Channel DC Load Module
40 / 40
80 / 80
3 / 3
41D & 42D Series
Model
Description
Max Power
(W)
Max Voltage
(V)
Max Current
(A)
41D3002 LED DC Load Module 150 300 2
41D1020 LED DC Load Module 300 100 20
41D5002 LED DC Load Module 300 500 2
42D5003
Dual LED DC Load Module
240
500 / 500
0.6 / 2.4

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INTRODUCTION
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1.3.1 Mainframe Features
The 44M04 four-slot mainframe has the following key features:
1. Flexible Configuration: The 44M04 can be used to house a variety of ‘4’ Series load
modules with different voltage and current sink ranges.
2. Plug in Design: It is quick and easy to take a load module out of the mainframe and
to replace it with another load module.
3. Computer Interfaces: GPIB, RS232, USB or LAN are available options for remote
control. The mechanical design of the interface cards is identical so they are easily
interchangeable if needed.
4. Front Panel Memory: Common test settings can be stored and recalled quickly.
5. Auto Sequencing: Memory locations may be linked to form a time-controlled
sequence of load changes.
6. Wake Up Function: The mainframe can be set to automatically revert to a load set
up on mains power on. This feature saves energy during periods of non-operation.
7. Intelligent Cooling: Temperature controlled fans a minimize audible noise.
1.3.2 Standard Accessories
The following accessories and items are included with each 44M04 mainframe:
• This Operation Manual in PDF Format on CD ROM.
• AC Line Cord.
Optional country specific line cords are available as an option.
1.3.3 Remote Control Options
Following Remote control option interfaces are available. Only one interface can be installed
at a time.
Option Description
Opt GPIB
GPIB (IEEE-488.2) Interface Option
Opt RS-232
RS-232 Interface Option
Opt USB
USB Interface Option
Opt LAN
LAN Interface Option

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INTRODUCTION
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1.3.4 Specifications
Following specifications apply to the 44M04 mainframe.
PARAMETER PARAMETER SPECIFICATIONS
SLOTS
Number of Load Modules
Supported
4
AC INPUT Line Voltage (selectable) 100-115Vac ±10% 200-230Vac ±10%
Frequency 50 / 60 Hz ±3Hz
Fuse
T2A/250V
(5x20 mm)
T1A/250V
(5x20 mm)
Power Consumption 150 Watt Max.
PHYSICAL Dimensions (H x W x D)
177 x 440 x 445 mm
7.0” x 17.3” x 17.5”
Weight: 9.3 kg 20.5 lbs
ENVIRONMENTAL Installation Category Cat I, Pollution Degree 2, Indoor use only
Temperature Range 0 – 40°C 32 – 104°F
Relative Humidity (max.) 80 % non-condensing
Altitude 2000 meters 6000 feet
Table 2: Mainframe Technical Specifications

CHAPTER 2
INSTALLATION
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2 Installation
2.1 Inspection
The 44M04 mainframe is carefully inspected tested and calibrated before shipment. If damage
to the instrument has occurred during transport, please inform Adaptive Power Systems’
nearest sales and service office or representative. Your 44M04 mainframe is shipped with a
power cord for the type of outlet used at your location. If the appropriated cord was not
included, please contact your nearest sales office to obtain the correct cord. Refer to "check
line voltage" to check the line voltage selection and fuse type.

CHAPTER 2
INSTALLATION
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2.2 AC Line Input Voltage Check
The 44M04 mainframe can be operated from a 100/115 or 200/230Vac input as indicated on
the label on the rear panel. The input is switchable so please make sure that the switch is set
correctly for your nominal mains input before turning on the mains power. The procedure
below details how to change the switch position:
1. With the 44M04 mainframe power OFF, disconnect the power cord.
2. Refer the drawing on the rear panel in Fig 2-1, set the switches to the Proper voltage as
described in the following:
a. Set Switch to 100V/115V for 115Vac line voltage
b. Set Switch to 200V/230V for 230Vac
Note: 100Vac and 200Vac is used for Japan only (Option)
Figure 1: AC Line Selection Switvh

CHAPTER 2
INSTALLATION
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2.3 Input Fuse
This product is fitted with a mains input fuse. If it needs to be replaced, please adhere to the
following procedure.
CAUTION
BEFORE replacing the fuse you must switch off the unit and mains
power outlet and disconnect the plug of the AC Power cable from the
input socket of the 44M04 chassis.
WARNING
If prior to exchanging the fuse, there is any abnormal noise or odor, do
not use the unit. Please inform your local sales office to organize repair
of the 44M04 chassis.
To avoid the risk of fire or electronic shock the fuse must only be
replaced with same type and rating as the original. Any replacement
fuse used should meet local national safety standards. Any use of an
improper fuse or shorting the Fuse holder is extremely dangerous and
is strictly prohibited.
2.3.1 Fuse Replacement Procedure
1. Check the rating of the mains input fuse. Replace only with the correct type and rating.
For 100V/115Vac Input use T2A/250V (5*20mm),
For 200V/230Vac Input useT1A/250V (5*20mm)
2. The AC line fuse is located below the AC line socket (see Fig 2-2). Use a small
screwdriver to remove the fuse holder. Replace the failed fuse with the appropriate
type and rating according to your mains voltage. (See Table 1-2)
3. Refit the fuse holder and connect the power cord.

CHAPTER 2
INSTALLATION
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Figure 2: Fuse Holder Location
2.4 Grounding Requirements
WARNING
SHOCK HAZARD
The unit is grounded via the AC Input. A line cord with proper Earth Ground pin must be
used at all times. Correct grounding of your electrical system infrastructure according to
applicable national standards must also be observed.
2.5 Chassis Position
The 44M04 electronic load mainframe is equipped with surface protection feet and tilt stands
installed and is ready for used as a bench instrument. The feet provide a good viewing angle
for bench-top use.
2.6 Rack Mounting
The 44M04 mainframe is designed to be rack mounted in a standard 19 inch rack for system
applications. If needed, the feet and tilt-stands may be removed to accommodate zero stacking
with other test equipment.
2.7 Cleaning
To clean this product uses a soft or slightly damp cloth.

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INSTALLATION
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CAUTION
BEFORE you clean the unit, switch the mains power off and
disconnect the input line cord.
・
Please do NOT use any organic solvent capable of changing the
nature of the plastic such as benzene or acetone.
・
Please ensure that no liquid is allowed to penetrate this product.
2.8 Powering Up
The following procedure should be followed before applying mains power:
1. Check that the POWER switch is in the off (O) position.
2. Verify that the rear panel voltage selector of the 44M04 mainframe is correctly set.
3. Check that nothing is connected to any of the DC INPUT (load input terminals) on the
front and/or rear panels.
4. Connect the correct AC mains line cord to the 44M04 AC input terminal.
5. Plug the line cord plug into a suitable AC outlet socket.
6. Turn on (I) the POWER switch.

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INSTALLATION
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2.9 Interface Options
The 44M04 support one of four different remote control interface options. The interface
specified at the time of order is installed at the factory prior to shipment. It is possible to
retrofit interface options in the field. Contact Adaptive Power Systems Customer Service for
instructions.
2.9.1 RS232 Serial Interface
Figure 3 shows the RS232 connector (Female) on the rear panel. This connects the 44M04
mainframe to RS232 port of computer. The RS232 BAUD-RATE can be set on the front
panel of the 44M04. Press the “SYSTEM” button twice to enter the desired BAUD RATE
adjustment.
Figure 3:44M04 RS232 Connection
2.9.2 GPIB Interface
The GPIB connector is located on the rear panel. This socket allows the 44M04 to be
connected to the controller and other GPIB devices. A GPIB system can be connected in any
configuration (star, linear, or both) as long as the following conditions are met:
• The maximum number of devices including the controller is equal or less than 15.
• The maximum length of the GPIB cable is no more than 2 meters.
• The total lead length of all devices connected together totals less than 20 meters.
• Please make sure the lock screws are firmly hand-tightened, use a screwdriver only for the
removal of screws. Figure 4 shows the rear panel of 44M04 mainframe. The GPIB address
of the 44M04 mainframe is set on the front panel.
Figure 4: 44M04 GPIB Connection

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INSTALLATION
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2.9.3 USB Interface
The 44M04 is a USB Device and uses a USB Type B connector on the rear panel when
equipped with the USB interface option. Figure 5 shows the USB connector in the rear panel
of 44M04 mainframe. Please refer Appendix B for information on USB communications.
Figure 5: 44M04 USB Connection
2.9.4 LAN Interface
The LAN option uses a 100BaseT Ethernet interface. Figure 6 shows the LAN connector on
the rear panel of the 44M04 mainframe. Please refer Appendix C for information on LAN
communications.
Figure 6: 44M04 LAN Connection

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INSTALLATION
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2.10 Remote Controller Option
A wired remote controller can be connected to the mainframe. Figure 1 shows the DB15
remote controller connector, which is located on the rear panel.
Figure 2 shows pin assignments for the DSUB-15 connector when the remote controller
option is fitted to the 44M04 mainframe. The remote controller allows the first 10 memory
locations to be recalled. Set ups saved at these memory locations can include dynamic
waveforms and the load ON state.
Note 1: O/P as a set of NG TTL High level signal output.
Figure 2: Remote Controller Connection
Figure
1:
44M04 Remote Controller Connector